276 results about "IEC 61850" patented technology

The invention provides a centralized digital transformer substation system. By adopting various new technologies and new devices, a new level centralized multifunctional intelligent device and a system are realized, thereby laying the foundation for the construction of a digital electric network. Based on an IEC 61850 standard, high speed Ethernet exchange and a virtual local area network (VLAN) technology, the system constructs a digital transformer substation information model and a communication network, and realizes sharing of information of the whole substation. On the basis, function integration of a digital transformer substation is realized and a system structure is simplified. A bay level multifunctional intelligent electronic device, i.e. a system controller integrates the functions of protection, measurement and control, wave recording and the like into a whole, and greatly simplifies the bay level device and wire connection; a process level intelligent terminal integrates the functions of a merging unit and an intelligent operation box into a whole; and all devices of each level provide models and interfaces conforming to the IEC 61850 standard.

Provided is a system and method of configuring IEDs to facilitate standardized communication messages among a plurality of IEDs within a power system network based on the IEC 61850 standard. A description file is described for an intelligent electronic device configured in accordance with the IEC-61850 standard. The description file includes a section which indicates which GOOSE message the intelligent electronic device should receive. In yet another embodiment, the description file includes a section which is capable of linking to logic functions of the intelligent electronic device for performing programmable data binding or dynamic data binding. A configuration tool is further provided for editing and creating such description files. A method for selectively receiving messages from an intelligent electronic device configured in accordance with the IEC-61850 standard is also described herein, along with a method for optimizing file space and improving execution speed of an intelligent electronic device configured in accordance with the IEC-61850 standard.

Substation automation (SA) systems are disclosed such as systems for configuring an International Electrotechnical Commission (IEC) 61850 standard-compliant Intelligent Electronic Device (IED) in a SA system. A proxy IED is a NCC gateway device enhanced for converting data between non-IEC 61850 and IEC 61850 communication protocols. Proxy IED is configured, based on a set of mappings, which are coded in the SA configuration description (SCD) file. The SCD file can include mappings for data conversion between non-IEC 61850 and IEC 61850 communication protocols.

The invention relates to a real-time and dynamic monitoring and recording device in the electric power system. IEC61850 models are uniformly established at a server end according to the IEC61850 standard requirement, and a failure wave recording logic module and a PMU logic module which have the same hardware platform are arranged at the server end; the system collocation is realized according to IEC 61850-6; and a separately used collocating tool is formed. The invention respectively models failure wave recording and synchronous phasor measurement into different logic equipment, not only realizes the data record under the condition of failure of the power system, but also realizes synchronous phasor measurement for important substations and power plants of the power system and further builds a real-time and dynamic monitoring system of the power system so as to enhance the monitoring for the dynamic safe stability of the power system and improve the ability of a dispatching mechanism to accurately grasp the running state of the system. The invention can be widely applied to various occasions of wave recording of lines, main substations and machine set as well as synchronous phasor measurement of important power plants and substations.

The integration method includes steps: using private comm protocol of each manufacturer to obtain private data collected by quality monitoring device for isomeric quality of power supply (QPS); keeping to IEC 61850 modeling rules to convert private data to object model of QPS data accorded with IEC 61850 standard; based on mapping principle to map IEC 61850 model to united OPC data format; following OPC criterion to provide OPC open application program interface. The invention also discloses data gateway of QPS in multiple protocols based on IEC 61850 and OPC. Using the method and gateway, the invention integrates and connects each isomeric QPS monitoring devices to realize sharing and unifying system resources as well as transparent inter accessing information between the monitoring device and automatic system of digitalized transformer substation. Advantages are: abundant comm protocols and intefaces, raised integrative efficiency, and satisfying requirement in future.

A process of implementing, or engineering, topology-dependent functions based on a formal description of the Substation Automation system, includes performing a topology analysis of the current single line state. A topology interpreting implementation replacing complex topology analysis logics can include the project specific static single line topology and the connection to the real process state data. All information can be delivered in an IEC 61850 conforming SCD file. The interface description for controlling and monitoring the load transfer application can be generated automatically from the SCD file.

A Substation Automation testing tool for IEC 61850 compliant substations is disclosed. It is concerned with the verification of the configuration of a first Intelligent Electronic Device (IED) that is part of a Substation Automation (SA) system and that has initially been configured to perform measurement, protection and / or control functions in accordance with a substation configuration specification. Configuration information is first read from an internal server of the first IED and transformed according to a dedicated data model. Related information is then read from e.g. a second IED that has initially been configured to perform the same functions as the first IED, or from a Substation Configuration Description (SCD) file, and likewise transformed. The transformed data is then compared in order to identify discrepancies or inconsistencies and to resolve errors introduced by the IED configuration process.

The invention relates to a sharing modeling method of an intelligent substation and a primary station. In the method, panoramic data are converted into an object model in accordance with IEC 61850 standards by acquiring panoramic data which comprehensively reflect equipment states and operating states of the substation such as substation steady states, temporary states, dynamic data, equipment states, images and the like acquired by various sensors; a primary station primary equipment model in accordance with a substation secondary equipment model of IEC 61850SCL and IEC 61970CIM modeling standards carries out mutual conversion mapping to realize unified modeling of primary equipment and secondary equipment of an electric power system; and a GID open application program interface in accordance with IEC 61970GID standards is provided. With the method, the substation unifies and simplifies a data source of the substation to form unique basic information based on the same section; and the interaction of internal information and external information of the substation is realized by unifying standard modeling; the seamless sharing of plant station information of the intelligent substation and an automation system of the primary station are realized; and the information of a primary station terminal and a plant station terminal for scheduling is free from maintenance. The method is suitable for sharing modeling of the intelligent substation and the primary station.

This invention discloses a gateway design method 0f conversing the 103 protocol for the realization of IEC 61850 generic. Because of IEC 61850 is the unified standard network of communication substation, substation layout of the heavily adopted IEC 60870-5-103 agreement on the remaining products is an obstacle for the implementation of IEC 61850,and the Model of legacy is numerous, if using special gateway, the types of gateway request many models, development, maintenance, validation which is a tremendous workload.. To address the problem, this invention uses a new agreement mapping method - XML Schema meta-data mapping method to establish a complete 103agreement and XML Schema model of IEC 61850, then describe the mapping rules between two models using XML Schema. Its hardware is based on embedded system technology, which is low cost, small size. Engineering staff only adjust configuration files; can realize conversion between IEC 60870-5-103 protocol agreement and the IEC 61850, instead of changing of Gateway hardware and software system and changes in code.

The invention discloses a networked power telecontrol communication method, which is used for solving the problems of the one-transmission multi-reception and information forwarding of power telecontrol information. The method adopts a technical scheme that: models of an IEC 61850 standard, such as common data models, data models, dataset models, selection control-prior-to-report-and-operation models and the like, are taken as bases, functional requirements of the power telecontrol communication are combined and then an IEC 61850-based power telecontrol communication model is established so that communications in a substation and between the substation and a control centre adopt IEC 61850, an MMS and Ethernet as a unique communication standard, a unique communication protocol and a unique communication platform so as to realize interoperations among different firm IEDs. The networked power telecontrol communication method radically solves the problems of the one-transmission multi-reception and information forwarding of the telecontrol information puzzling the field of power telecontrol for a plurality of years, and realizes the interoperations among the different firm IEDs and the unified configuration and management on equipment.

The invention discloses an integrated platform of configuration protection and engineering configuration of a digital transformer substation, which is characterized by comprising an imaging device function configuration module, an IEC 61850 modeling configuration module and a secondary equipment networking module of a transformer substation, wherein the imaging device function configuration module is used for imaging configuration, automatically generating protection based on the C language after configuration and simultaneously generating a device function description configuration file provided for the IEC 61850 modeling configuration module to use; the IEC 61850 modeling configuration module is used for managing configuration files of the whole transformer substation and carrying out secondary instantiation and private configuration mapping through the device function description configuration file output by the imaging device function configuration module; and the secondary equipment networking module of a transformer substation is used for finishing the GOOSE communication configuration of a single device or devices of the whole station and outputting a GOOSE dummy terminal signal list. The invention can quickly meet different requirements of different users to realize the protection of flexible configurations and quick configuration so as to improve the on-site engineering debugging efficiency of the digital transformer substation.

A system and method of converting a file is disclosed that is based on a first standard to a file that is based on a second standard. The concerned standards can be IEC 61970 and IEC 61850 or their equivalents. For conversion, a file based on IEC 61970 is coded according to CIMXML (RDF Schema), and a file in IEC 61850 is coded according to SCL (XML Schema). The data in each file is modelled by using a UML model for the corresponding standard. The method includes the automatic generation of mapping rules that can be based on the UML models of the two standards and the mappings between the two standards. The method further converts the identified elements by using the generated mapping rules. Finally, post-processing rules can be applied to the converted elements to generate the file, based on the second standard.

The invention discloses a power distribution terminal plug-and-play communication method based on an IEC 61850 standard, comprising that: a power distribution terminal transmits registration information to a main station terminal; the main station terminal receives and verifies registration information; if the registration information is inconsistent, a information model file is issued to the power distribution terminal according to the registration information or the information model filed is obtained through the power distribution terminal, so that the registration information received by the main station terminal is consistent with the registration information transmitted by the power distribution terminal; the main station terminal parses the information model file into a communication point table according to the corresponding mapping relation; the power distribution terminal transmits real-time operation information of a power distribution network to the main station terminal according to the local information model;and the main station terminal receives real-time operation information of the power distribution network and controls the power distribution terminal through orders. The invention, through the interaction of information models, realizes the self-description of the power distribution terminal and automatic recognition and automatic analysis performed on the function points of the power distribution terminal by the main station terminal so as to achieve the plug-and-play communication effect of the power distribution terminal when the power distribution terminal accesses the network, modifies configuration, updates and maintains the system.

The invention relates to the technical operating field of intelligent substation operation and maintenance, and especially relates to an intelligent substation primary-secondary equipment state information visual displaying method based on configuration files and the G language. The visual displaying method is suitable for intelligent substations adopting the IEC 61850 standard. According to the invention, a main wiring diagram and a spaced wiring diagram of primary equipment are automatically generated in dependence on the configuration files of the intelligent substation, by associating an intelligent terminal, a merging unit and a protection device with each other, the primary equipment and secondary equipment of the intelligent substation are organically connected and visually displayed, the application field of the configuration files is expanded, the topological relation between the primary equipment and the secondary equipment and state information of the primary equipment and the secondary equipment are visually displayed in a graphical manner, operation and maintenance of the equipment are convenient, and the safety control level of the intelligent substation is improved.

The present disclosure is concerned with a validation of a configuration description of automated devices in a power network such as a Substation Automation (SA) system, or of a part or component thereof such as an individual Intelligent Electronic Device (IED), that is extended beyond the mere XML schema validation as provided by the known SCL-validation tools. In particular, the disclosure introduces machine-based validation of notations, requirements and / or conventions to be respected by the configuration description and / or the SA system, but not incorporated in or represented by the standardized syntax of the XML schema as defined in part 6 of the IEC 61850 standard. To this end, notations, requirements and / or conventions are initially converted into, or defined as, extended or augmented rules encoded in computer readable format. The content or information of a file having an Substation Configuration description Language (SCL) compliant description of an SA system, or of a part or component there of, is then read by parsing the file and checked for conformance to the rules. Any inconsistency, error, wrong configuration or insufficient description found is displayed to a user, who may then correct the content or information in the file. The procedure according to the disclosure can contribute, in an automated manner, to the correctness of the description of a Substation Automation (SA) system beyond the pure syntactical adherence to the IEC 61850 standard.

A chart-model integrated transformer substation and dispatch master station cooperation modeling method comprises an environment establishing stage and a model establishing stage. According to the method, transformer substation model establishing in a chart-model integrated mode, whole network model integrated processing and seamless connecting can be achieved. On a transformer substation side, a chart-model integrated transformer substation model can guide out transformer substation configuration files which are used for a 61850 transformer substation to carry out configuration. On a master station side, a chart-model integrated power grid model can guide out a CIM, a CIM / E data model, an SVG, a G format transformer substation graph and a geography wiring diagram. The fact that a power grid primary equipment model, a power grid secondary equipment model and graph information are maintained at a transformer substation source end and shared in the whole network is achieved, the shortcoming that currently, the master station side carries out repeated modeling and maintaining on the transformer substation model and the graph is overcome substantially, repeated modeling error probability and production cost are lowered, the consistency and the operability of the power grid model are improved, and accordingly IEC 61850 and IEC61970 standard systematization application is promoted.

The invention discloses a substation network communication simulation system based on an IEC 61850. The substation network communication simulation system based on the IEC 61850 comprises an upper computer, internal communication network cables, a lower computer, an MMS network, a GOOSE / SMV network and a point-to-point network. The upper computer is connected with the MMS network through a station level MMS communication interface. The MMS network is connected with a station level IEC 61850 client side system. The lower computer is provided with a plurality of network interfaces which comprise the lower computer internal communication interface, the interlayer communication interface and the process level GOOSE / SMV communication interface. The substation network communication simulation system based on the IEC 61850 can simulate communication motions of various devices such as the IEC, a monitoring protecting device and a monitoring back stage, complete the simulation of a substation IEC 61850 communication network and achieve the operation of uniformity testing, interoperability testing, performance testing and the like of the substation IEC 61850 communication network.

The invention discloses a power quality and synchronized phasor monitoring device for a power system, which is characterized in that: IEC 61850 models are uniformly established at a server according to IEC 61850 standards, and a power quality logic unit and a PMU logic unit with an identical hardware platform are arranged; and according to IEC 61850-6, system configuration is realized and independently used configuration tools are formed. In the invention, power quality monitoring and synchronized phasor monitoring are modeled as different logic equipment according to the IEC 61850 standards respectively, thus not only the power quality of a transformer substation of a power system and a power consumer is continuously measured and recorded, but also the synchronized phasor of the transformer substation and a power plant of the power system is continuously measured and recorded to further construct a power system real-time dynamic monitoring system so as to enhance the dynamic, safe and stable monitoring and control over the power system and improve the capacity of a scheduling mechanism to accurately master the running state of the system. The device in the invention can be widely applied to various power quality monitoring and synchronized phasor measurement occasions.

The invention discloses a method for integrating a power equipment state monitoring device. The technical scheme is that: a seamless communication server consists of a communication interface, a protocol converter and an ACSI server, and an IEC 61850 client is directly connected with the ACSI server; and transmission and transformation state online monitoring devices in different types are accessed through the provided communication interface. In the method, a mapping rule is established between a traditional protocol and the IEC 61850 by a mapping rule editor; the protocol converter finishes protocol conversion between the traditional protocol and the IEC 61850 by using the mapping rule so as to realize the communication between different transmission and transformation state online monitoring devices and the ACSI server to realize communication between the different transmission and transformation state online monitoring devices and the IEC 61850 client. The method for integrating the power equipment state monitoring devices radically solves the problem that the conventional power grid state online monitoring devices are difficult for interoperation and information sharing, and can better meet the requirements of an intelligent power grid on panoramic state information monitoring.

The invention discloses a method of automatic management on configuration information based upon an intelligent substation, the intelligent substation applying the IEC-61850 standard including IED devices and a switch, wherein the method includes the following steps: parsing an intelligent substation configuration file to acquire communication configuration information and communication association configuration information of the IED devices; and generating a switch configuration file from the communication configuration information and the communication association configuration information of the IED devices. The invention can parse the intelligent substation configuration file, generate the switch configuration file and perform automatic configuration of the industrial Ethernet switch in the intelligent substation using the switch configuration

The invention relates to a general template for an automated relay protection tester and an instantiation method of the general template. The general template comprises basic template information, an IEC 61850 parameter and a protection test project. The basic template information comprises a template name, a protection network segment, a protection name, device description, a protection model, an access node and an IP address. The IEC 61850 parameter comprises a fixed protection value, a control word, a soft pressing plate and data model information of a protection event. The protection test project comprises setting value calculation and setting under the protection test project. The general template for the automated relay protection tester and the instantiation method of the general template have the advantages that the adaptation of the automated relay protection tester is improved, compared with the method that different templates are set according to protection devices of different manufacturers, by means of the general template and the instantiation method of the general template, the maintenance difficulty and the maintenance workload of the template are remarkably lowered, the operation complexity of the automated relay protection tester is lowered, and a user can conduct instantiation the template of the protection device of a specific model quickly.

The invention relates to a system in the technical field of information, and in particular relates to a microgrid energy management system based on the IEC (International Electrotechnical Commission) 61850 and a multi-agent method. The microgrid energy management system comprises a distributed power supply / load control unit agent, a microgrid central control unit agent and a power distribution grid control unit agent, wherein according to the modeling standard of the IEC 61850 and the characteristics of all units forming the microgrid system, by using an information model defined by the IEC 61850 as a uniform reference of message transmission among the agents, the information model is mapped to an ontology element of an agent communication language (ACL), the compatibility of the IEC 61850 and the multi-agent method is realized, the working state of a microgrid is described by the information model based on the IEC 61850 inside the agents, and the agents are communicated through the ACL. The multi-agent method is applied to the microgrid energy management system, and the information model of the IEC 61850 is used as the basis of the message transmission among the agents, so that the instantaneity, the uniformity and the interoperability of information interaction among the agents are ensured, and all-network ideal operation of all distributed power supplies and the microgrid system is realized by using a dynamic game in an optimizing process on the basis of a simulated annealing algorithm.

The invention discloses a multifunctional integrated configuration platform system of secondary equipment of an intelligent substation. The multifunctional integrated configuration platform system of the secondary equipment of the intelligent substation comprises a sampling interface independent configuration module, a substation logical configuration module, an IEC 61850 project configuration module, an SV sampling value sending configuration module and a digital relay protection equipment platform, wherein the digital relay protection equipment platform comprises an analog quantity and fiber interface module, a common IO and operation box interface module, a protection measurement and control logical function module, a station control layer MMS service module, a GOOSE communication service module and an SV sampling value sending service module. The multifunctional integrated configuration platform system can be used in the intelligent substation, realizes the functions of an independent protection, measurement and control device, a merging unit device, an intelligent unit device and a two-to-one or multi-to-one functional device, realizes the integration of the functions of the secondary equipment of the intelligent substation and project configuration, simplifies equipment configuration inside the substation, optimizes a network structure of the intelligent substation, effectively improves the operation reliability and project designing and debugging efficiency of the whole system.

The invention discloses a data sharing type area protection system based on IEC 61850, which is based on a high-speed data communication network, a plurality of lines which are closely interrelated are considered to be used as one area, intelligent protection devices inside the area are mutually connected through optical fibers, GPS synchronous data are adopted, and the information is shared, therefore, the novel protection system is established. The protection system utilizes a plurality of points to share synchronous information, is capable of accurately judging a position of fault when the protection system is broken down, has the absolute selectivity of protection action during normal communication and can select a protection unit needed to be used as reserve protection action according to a topological structure and a fault wire position of a protected electric system when main protection is rejected or a circuit breaker does not work. Compared with the traditional reserve protection action, the intelligent reserve protection action of the area has short time and good selectivity and also greatly simplifies adjusting and matching work.

The invention discloses an intelligent substation and regulation and control center coordinative modeling method, comprising: standardizing the function of a system configuration tool of a substation automatic system; standardizing and expanding device and signal descriptions in an SCD (Substation Configuration Description) file; expanding a measurement model in a CIM / E (Common Information Model / E language) file; making mapping rules of IEC 61850 and IEC 61970 models; by reference to requirements of relay protection information standards and monitor system information standards, performing classified management on the information; automatically exporting the CIM / E file required by a regulation and control center on the side of an intelligent substation by using the system configuration tool, and performing checking; and providing the CIM / E model file for the regulation and control center in an offline or online manner and executing model splicing and storage processing. According to the method, the mapping and conversion from the 61850 model to the 61970 model are finished, the model and information sharing is realized, the model maintenance workload of the regulation and control center is reduced, and the working efficiency is improved.

The present invention is concerned with substation automation (SA) systems, in particular with a method and system for configuring an International Electrotechnical Commission (IEC) 61850 standard-compliant Intelligent Electronic Device (IED) 104 in SA system 100. Proxy IED 104 is a NCC gateway device enhanced for converting data between non-IEC 61850 and IEC 61850 communication protocols. Proxy IED 104 is configured, based on a set of mappings, which are coded in the SA configuration description (SCD) file. The SCD file includes mappings for data conversion between non- IEC 61850 and IEC 61850 communication protocols.

The invention discloses an on-line monitoring method of a state of relay protection equipment, which ensures a content of self-inspection information provided by the relay protection equipment. The method comprises the following steps of: classifying self-inspection information; adding additional information and content thereof of each kind of self-inspection information, which is capable of reflecting the influence degree to the equipment state; collecting the self-inspection information provided by the relay protection equipment through using the IEC-61850 communication standard adopted by the communication network in a transformer substation by a state overhaul host, and building a static and dynamic self-inspection information database of the relay protection equipment; and carrying out on-line monitoring on the state of the equipment by using a general state mathematic model of the relay protection equipment in real time so as to provide the guidance for the state overhaul of therelay protection equipment. Through the on-line monitoring method of the state of the relay protection equipment, the state of the relay protection equipment can be monitored on line, the reliabilityand the usability of the relay protection equipment can be improved, the service life of the relay protection equipment can be prolongged, the operation and overhaul expenses can be reduced and the economic benefit can be increased.

The invention provides an IEC 61850 universal database information model and a design method for an interface of the IEC 61850 universal database information model. The database model consists of an information model, an equipment model and an application model, wherein the information model obeys IEC 61850; the equipment model obeys IEC 61970; the information model comprises engineering instantiation configuration information of intelligent electronic equipment; and the engineering instantiation configuration information comprises a model type database table, a data type database table, a template type database table and a communication type database table. By a database design with three layers of frameworks, so that a standard model is multiplexed; a database can be automatically established by directly adopting a security coding device (SCD) model file, and an incidence relation among the information model, the equipment model and the application model can be automatically constructed; therefore, the engineering debugging period and the maintenance cost can be obviously reduced; the database information model based on the universal data type is constructed; a search mode quoted by a data object based on a character string format is designed; moreover, an open access interface is supplied; and the IEC 61850 universal database information model is suitable for different database platforms.